Rake corner or knuckle for steel barges.



No. 853,920. PATENTED MAY 14, 1907- R. J. DONOVAN.

I RAKE CORNER 0R KNUCKLE FOR STEEL BARGES.

APPLICATION FILED MAR. 16, 1907- wrrnzsszs v v r v mvem-on I. I k QQMWM QqMs X I mam;

NITED STATES PATENT OFFICE.

RICHARD. J. DONOVAN, or AMBRIDGE, PENNSYLVANIA, ASSIGNOR TO '--AMERICAN BRIDGE COMPANY, OF PITTSBURG, PENNSYLVANIA, A

CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

' RAKE CORNER OR KNUCKLE FOR STEEL BARGES.

Patented May 14,1907.

Implication filed March 16, 1907. ierial No. 362,695.

To all whom, it nmy concern:

Be it known that I, RIOHARD J. -DONOVAN, of Ambridge, Beaver county, Pennsylvania, have invented anew and useful Rake Corner or Knuckle for Steel Barges, 'of which the following i a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation showing the end portion of a steel barge constructed in accordance with my invention; and Figs. 2, 3 and 4 are partial cross-sections on the lines IIII, IIIIII, and 'IVIV respectively of Fig. 1.

My invention relates to the corner constructions of steel barges, and particularly to those wherein the upper portion of the corner is rounded or curved in cross-section.

IIeretofore' in such structures the corner plate has been curved from the top to the bottom, and it has been a dillicu'lt matter to prepare the plate and connect it with the corner piece running along the lower longi-' tudinal corner of the barge.

My invention is designed to provide for the use of a corner portion which is rounded in its upper part and is of angular section in its lower part where it connects with an angle which connects the side and bottom plates through the body of the barge.

In the drawings, 2 represents the upper part of the corner piece, which is curved 1011- gitudinally and transversely, and is preferably formed of a steel casting or a pressed plate. This portion is preferably recessed at the edges, as shown at 3 3 to receive the rake plating 4 and the side plating 5 respectively. The remaining portion of the corner piece is preferably formed of a pressed plate 6, which is formed with a curved or rounded cross-section in its upper portion and with an angular or square cross-section in its lower portion, as shown by the two sections, Figs 3 and 4. Theseportions gradually mer e into each other, giving a corner plate w 'ch may be easily and cheaply pressed and afiord a rounded corner, while at the same time allowing a rolled angle to be used along the lower side corner of the barge boday.

In the rawing, 7 represents the rolled anlower portion.

gle, which extends along the inner edges of the side plating and the bottom plating, this angle being bent up to overlap the pressed plate 6 on the inside of the side and rake plating respectively. The side and rake plating is of course riveted to the member '6 and also to the member 7 at their overlapping portions.

The advantages of my invention result from the peculiar corner plate or corner piece, which is of rounded crosssection in its upper portion and of angular cross-section in its This gives the rounded surface which is desirable above, while allowing a rolled angle to be used along the lower outer corner of the barge body. The corner piece may be formed in one or more sections,

" and changes may be made in'its size and shape without departing from my invention.

I clann:- 1. In barge construction, a corner piece between the side plating and rake plating having a curved cross-section in its upper portion-and an. angular cross-section in its lower portion; substantially as described.

2. In barge construction, a corner platooverlapping the outside edges of the side plating and rake plating, and riveted thereto, said plate having a curved cross-section in its upper portion and an angular cross-section in its lower portion; substantially as described.

3. In barge construction, av corner piece having an upper section curved longitudinally and transversely, and the remaining section having a curved'cross-section in its upper portion and an angular cross-section in its lower portion; substantially as described.

4. In barge construction, a corner piece arranged to overlap the side plating and rake plating, said piece being of'curved cross-section in its upper part and of angular crosssection in the lower part, in combination with an angle overlapping the side and rake platin on theinside; substantially as described.

in testimony whereof, I have hereunto set my hand. i

RICHARD J. DONOVAN.

Witnesses:

GEO. B, BLEMING, GEO. H. PARMELEE. 

